Amperometric flow injection analysis as a new approach for studying disperse systems

Autores
Erro, Eustaquio Martín; Giacomelli, Carla Eugenia; Perez, M. Rosario; Ulibarri, M. Angeles; Ortiz, Patricia Ines; Rojas Delgado, Ricardo
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Fast and simple quantitative determination in dispersed systems (layered double hydroxides - LDHs - suspensions in aqueous solutions) was performed by a procedure that couples flow injection and amperometric detection (FI-AM). LDH dispersions are injected in a continuous flow (1 mL min-1) of 0.05 mol L-1 KNO3 solution and [Cu(H2O)6]2+, used as a probe, is detected at a glassy carbon electrode housed in a flat electrochemical cell. The current intensity, recorded at the selected working potential (-0.25 V vs Ag/AgCl/NaCl (3 mol L-1)), presents a linear relationship with [Cu(H2O)6]2+ concentration and the procedure offers high sensitivity (slope = 0.036 μA/(μmol L-1)), a low detection limit (=0.7 μmol L-1) and a wide quantification range (4-200 μmol L-1). The method was applied to [Cu(H2O)6]2+ determination in two particular LDH-aqueous solution dispersed systems: (1) [Cu(H2O)6]2+ scavenging by etilendiammintetraacetic acid (EDTA) modified Zn-Al-LDHs, and (2) [Cu(H2O)6]2+ release from a copper doped Mg-Al-LDHs. The results obtained are comparable to those reported in previous works using different quantification techniques. FI-AM determination is applied without sample pretreatment (solid-supernatant separation) providing a high sampling rate (above 120 samples h-1) that allows a better comprehension of the processes, particularly at the initial stages.
Fil: Erro, Eustaquio Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Giacomelli, Carla Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Perez, M. Rosario. Universidad de Córdoba; España
Fil: Ulibarri, M. Angeles. Universidad de Córdoba; España
Fil: Ortiz, Patricia Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Rojas Delgado, Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Materia
Amperometry
Copper Quantification
Dispersed Systems
Flow Injection
Layered Double Hydroxides
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/74335
Acceder
id CONICETDig_74091faaf81bbb12ff0d1685f16e9b0a
oai_identifier_str oai:ri.conicet.gov.ar:11336/74335
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Amperometric flow injection analysis as a new approach for studying disperse systemsErro, Eustaquio MartínGiacomelli, Carla EugeniaPerez, M. RosarioUlibarri, M. AngelesOrtiz, Patricia InesRojas Delgado, RicardoAmperometryCopper QuantificationDispersed SystemsFlow InjectionLayered Double Hydroxideshttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Fast and simple quantitative determination in dispersed systems (layered double hydroxides - LDHs - suspensions in aqueous solutions) was performed by a procedure that couples flow injection and amperometric detection (FI-AM). LDH dispersions are injected in a continuous flow (1 mL min-1) of 0.05 mol L-1 KNO3 solution and [Cu(H2O)6]2+, used as a probe, is detected at a glassy carbon electrode housed in a flat electrochemical cell. The current intensity, recorded at the selected working potential (-0.25 V vs Ag/AgCl/NaCl (3 mol L-1)), presents a linear relationship with [Cu(H2O)6]2+ concentration and the procedure offers high sensitivity (slope = 0.036 μA/(μmol L-1)), a low detection limit (=0.7 μmol L-1) and a wide quantification range (4-200 μmol L-1). The method was applied to [Cu(H2O)6]2+ determination in two particular LDH-aqueous solution dispersed systems: (1) [Cu(H2O)6]2+ scavenging by etilendiammintetraacetic acid (EDTA) modified Zn-Al-LDHs, and (2) [Cu(H2O)6]2+ release from a copper doped Mg-Al-LDHs. The results obtained are comparable to those reported in previous works using different quantification techniques. FI-AM determination is applied without sample pretreatment (solid-supernatant separation) providing a high sampling rate (above 120 samples h-1) that allows a better comprehension of the processes, particularly at the initial stages.Fil: Erro, Eustaquio Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaFil: Giacomelli, Carla Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaFil: Perez, M. Rosario. Universidad de Córdoba; EspañaFil: Ulibarri, M. Angeles. Universidad de Córdoba; EspañaFil: Ortiz, Patricia Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaFil: Rojas Delgado, Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaPergamon-Elsevier Science Ltd2009-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/74335Erro, Eustaquio Martín; Giacomelli, Carla Eugenia; Perez, M. Rosario; Ulibarri, M. Angeles; Ortiz, Patricia Ines; et al.; Amperometric flow injection analysis as a new approach for studying disperse systems; Pergamon-Elsevier Science Ltd; Electrochimica Acta; 55; 2; 12-2009; 475-4790013-4686CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.electacta.2009.08.053info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0013468609011232info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:46:52Zoai:ri.conicet.gov.ar:11336/74335instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:46:52.798CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Amperometric flow injection analysis as a new approach for studying disperse systems
title Amperometric flow injection analysis as a new approach for studying disperse systems
spellingShingle Amperometric flow injection analysis as a new approach for studying disperse systems
Erro, Eustaquio Martín
Amperometry
Copper Quantification
Dispersed Systems
Flow Injection
Layered Double Hydroxides
title_short Amperometric flow injection analysis as a new approach for studying disperse systems
title_full Amperometric flow injection analysis as a new approach for studying disperse systems
title_fullStr Amperometric flow injection analysis as a new approach for studying disperse systems
title_full_unstemmed Amperometric flow injection analysis as a new approach for studying disperse systems
title_sort Amperometric flow injection analysis as a new approach for studying disperse systems
dc.creator.none.fl_str_mv Erro, Eustaquio Martín
Giacomelli, Carla Eugenia
Perez, M. Rosario
Ulibarri, M. Angeles
Ortiz, Patricia Ines
Rojas Delgado, Ricardo
author Erro, Eustaquio Martín
author_facet Erro, Eustaquio Martín
Giacomelli, Carla Eugenia
Perez, M. Rosario
Ulibarri, M. Angeles
Ortiz, Patricia Ines
Rojas Delgado, Ricardo
author_role author
author2 Giacomelli, Carla Eugenia
Perez, M. Rosario
Ulibarri, M. Angeles
Ortiz, Patricia Ines
Rojas Delgado, Ricardo
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Amperometry
Copper Quantification
Dispersed Systems
Flow Injection
Layered Double Hydroxides
topic Amperometry
Copper Quantification
Dispersed Systems
Flow Injection
Layered Double Hydroxides
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Fast and simple quantitative determination in dispersed systems (layered double hydroxides - LDHs - suspensions in aqueous solutions) was performed by a procedure that couples flow injection and amperometric detection (FI-AM). LDH dispersions are injected in a continuous flow (1 mL min-1) of 0.05 mol L-1 KNO3 solution and [Cu(H2O)6]2+, used as a probe, is detected at a glassy carbon electrode housed in a flat electrochemical cell. The current intensity, recorded at the selected working potential (-0.25 V vs Ag/AgCl/NaCl (3 mol L-1)), presents a linear relationship with [Cu(H2O)6]2+ concentration and the procedure offers high sensitivity (slope = 0.036 μA/(μmol L-1)), a low detection limit (=0.7 μmol L-1) and a wide quantification range (4-200 μmol L-1). The method was applied to [Cu(H2O)6]2+ determination in two particular LDH-aqueous solution dispersed systems: (1) [Cu(H2O)6]2+ scavenging by etilendiammintetraacetic acid (EDTA) modified Zn-Al-LDHs, and (2) [Cu(H2O)6]2+ release from a copper doped Mg-Al-LDHs. The results obtained are comparable to those reported in previous works using different quantification techniques. FI-AM determination is applied without sample pretreatment (solid-supernatant separation) providing a high sampling rate (above 120 samples h-1) that allows a better comprehension of the processes, particularly at the initial stages.
Fil: Erro, Eustaquio Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Giacomelli, Carla Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Perez, M. Rosario. Universidad de Córdoba; España
Fil: Ulibarri, M. Angeles. Universidad de Córdoba; España
Fil: Ortiz, Patricia Ines. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Rojas Delgado, Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
description Fast and simple quantitative determination in dispersed systems (layered double hydroxides - LDHs - suspensions in aqueous solutions) was performed by a procedure that couples flow injection and amperometric detection (FI-AM). LDH dispersions are injected in a continuous flow (1 mL min-1) of 0.05 mol L-1 KNO3 solution and [Cu(H2O)6]2+, used as a probe, is detected at a glassy carbon electrode housed in a flat electrochemical cell. The current intensity, recorded at the selected working potential (-0.25 V vs Ag/AgCl/NaCl (3 mol L-1)), presents a linear relationship with [Cu(H2O)6]2+ concentration and the procedure offers high sensitivity (slope = 0.036 μA/(μmol L-1)), a low detection limit (=0.7 μmol L-1) and a wide quantification range (4-200 μmol L-1). The method was applied to [Cu(H2O)6]2+ determination in two particular LDH-aqueous solution dispersed systems: (1) [Cu(H2O)6]2+ scavenging by etilendiammintetraacetic acid (EDTA) modified Zn-Al-LDHs, and (2) [Cu(H2O)6]2+ release from a copper doped Mg-Al-LDHs. The results obtained are comparable to those reported in previous works using different quantification techniques. FI-AM determination is applied without sample pretreatment (solid-supernatant separation) providing a high sampling rate (above 120 samples h-1) that allows a better comprehension of the processes, particularly at the initial stages.
publishDate 2009
dc.date.none.fl_str_mv 2009-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/74335
Erro, Eustaquio Martín; Giacomelli, Carla Eugenia; Perez, M. Rosario; Ulibarri, M. Angeles; Ortiz, Patricia Ines; et al.; Amperometric flow injection analysis as a new approach for studying disperse systems; Pergamon-Elsevier Science Ltd; Electrochimica Acta; 55; 2; 12-2009; 475-479
0013-4686
CONICET Digital
CONICET
url http://hdl.handle.net/11336/74335
identifier_str_mv Erro, Eustaquio Martín; Giacomelli, Carla Eugenia; Perez, M. Rosario; Ulibarri, M. Angeles; Ortiz, Patricia Ines; et al.; Amperometric flow injection analysis as a new approach for studying disperse systems; Pergamon-Elsevier Science Ltd; Electrochimica Acta; 55; 2; 12-2009; 475-479
0013-4686
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.electacta.2009.08.053
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0013468609011232
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1842268822566862848
score 13.13397

Publicaciones similares